mysqldata/myinstl/tmp/MYdf

Posted 2023-04-15

参考技术A 这是mysql安装文件目录。
Sql异常终止，导致sortaborted。而临时目录下的/tmp/ML等文件虽然删除，但由于mysql线程连接是长连接，线程还存在，暂时不会释放空间。

MySQL 配置文件模板

# The MySQL server

[mysqld]

port=3306

user=mysqld

socket=/data/mysqldata/3306/mysql.sock

pid-file=/data/mysqldata/3306/mysql.pid

basedir=/usr/local/mysql

datadir=/data/mysqldata/3306/data

tmpdir=/data/mysqldata/3306/tmp

open_files_limit=10240

explicit_defaults_for_timestamp

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

federated

server_id=1

max_connections=1000

max_connect_errors=100000

interactive_timeout=86400

wait_timeout=86400

skip-name-resolve

sync_binlog=0

# Buffer

sort_buffer_size=2m

read_buffer_size=2m

read_rnd_buffer_size=2m

join_buffer_size=2m

net_buffer_length=16k

max_allowed_packet=512m

bulk_insert_buffer_size=32m

max_heap_table_size=512m

tmp_table_size=512m

thread_cache_size=300

query_cache_size=128m

query_cache_limit=1m

query_cache_min_res_unit=4k

key_buffer_size=16m

myisam_sort_buffer_size=64m

myisam_max_sort_file_size=10g

myisam_repair_threads=1

# Log

log-bin=../binlog/mysql-bin

binlog_cache_size=32m

max_binlog_cache_size=64m

binlog_stmt_cache_size=32m

table_open_cache=2048

max_binlog_size=512m

binlog_format=statemaent

log_output=FILE

log-error=../mysql-error.log

slow_query_log=1

slow_query_log_file=../slow_query.log 

general_log=0

general_log_file=../general_query.log

expire-logs-days=14

relay-log=../bin/relay-bin

relay-log-index=../binlog/relay-bin.index

# InnoDB

innodb_data_file_path=ibdata1:2048M:autoextend

innodb_log_file_size=128m

innodb_log_files_in_group=3

innodb_buffer_pool_size=9g

innodb_buffer_pool_instances=-1

innodb_max_dirty_pages_pct=70

innodb_thread_concurrency=8

innodb_flush_method=O_DIRECT

innodb_log_buffer_size=16m

innodb_flush_log_at_trx_commit=2